Backpack



FIG. 1 is a frontal perspective view of a backpack showing our newdesign;

FIG. 2 is a front elevational view thereof,

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a right side view (in relation to the front elevational view)thereof;

FIG. 5 is a left side view (in relation to the front devotional view)thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines illustrate portions of the backpack and form no part ofthe claim design.

CLAIM The ornamental design for a backpack, as shown and described.